Fileca Sike, "Crimson Hope" ¿who is she? ¿Who is the person under the mask? Fileca is so mysterious like the organization she belongs: the "Mankind Custody". Although, she is one of its most important member, only a few people know their existence. Her name is from a mythological being that keep the whole evilness to avoid it spread over the world, so her mission is protecting the peace and the stability of the nations at all costs. Fileca Sike and Erithrel Areté are high range members in the "Mankind Custody". They only obey to their leader. However, due to their huge rivalry, rarely they work together.